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Finding the Fourth Proportional to 207,043.38, 285,730.00 and 116,427.87

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Solution

The fourth proportional to 207,043.38, 285,730.00 and 116,427.87 is: 160,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,043.38 : 285,730.00 = 116,427.87 : x
  2. Step 2: Convert to fraction form
    207,043.38/285,730.00 = 116,427.87/x
  3. Step 3: Cross multiply
    207,043.38x = 285,730.00 × 116,427.87
  4. Step 4: Simplify right side
    207,043.38x = 33,266,935,004.03
  5. Step 5: Solve for x
    x = 33,266,935,004.03/207,043.38
  6. Step 6: Final answer
    x = 160,676.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.